Fig. 2
From: A technical note on the posterior approach BDBO for treating Kümmell disease

A 59-year-old female patient with Kummel’s disease. Her chief complaint was back pain with limited mobility for 6 months after a fall. (A) Preoperative frontal and (B) lateral radiographs of the spine show a kyphosis of the thoracolumbar segment and a compression fracture of L1; (C) preoperative sagittal CT scans show a vertebral collapse of L1 with kyphotic deformity; (D) preoperative T2-weighted MRI images show a linear high signal below the superior endplate of L1 surrounded by a low signal; (E) intraoperative clinical images show that the bionic bone cage was filled with autogenous bone particles; (F) postoperative lumbar frontal and (G) lateral X-rays of the lumbar spine show that the position of the pedicle screws is good and the kyphosis has been significantly corrected; (H) postoperative axial CT images show the bionic cage in good position; (I, J) postoperative sagittal CT scans after 3 months and at final follow-up show adequate bone grafting within the bionic cage and good correction of the kyphosis; (K, L) postoperative coronal CT scans after 3 months and at final follow-up show adequate bone grafting within the bionic cage and good correction of the kyphosis.